Electronic keyboard with a damper keyboard based on a magnetorheological material

Abstract

The utility model relates to the field of electronic organ damping keyboard discloses an electronic organ damping keyboard based on magnetorheological material, including key, pressing block and three liquid storage cylinder, the middle part of key lower surface is provided with the clamping slot, the inside of liquid storage cylinder all respectively is provided with piston rod, the upper end and the lower end of the outer wall of piston rod's stem all respectively with liquid storage cylinder sliding connection, the upper end of piston rod all respectively fixedly connected with connecting block, the middle part of liquid storage cylinder inside top all respectively fixedly connected with sealed circle no.

Description

Technical Field

[0001] This utility model relates to the field of damped electronic keyboards, and more particularly to a damped electronic keyboard based on magnetorheological materials. Background Technology

[0002] The keys of existing digital pianos on the market use conductive rubber to simulate touch, but their feel is different from that of a real piano. Furthermore, due to the one-dimensional feedback of conductive rubber and the inability to adjust its damping value, digital piano keys lack the damping experience of a real piano and are difficult to meet the needs of professional performance.

[0003] Therefore, those skilled in the art have provided an electronic keyboard damping keyboard based on magnetorheological materials to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a damped electronic keyboard based on magnetorheological materials. This keyboard utilizes a combination of pressing blocks, multiple piston rods equipped with electromagnetic coils, and a reservoir containing magnetorheological fluid. Users can adjust the values ​​of the electromagnetic coils via an external control device, thereby adjusting the damping of the piston rods moving within the reservoir. This allows the electronic piano keys to simulate the feel of a real piano, providing users with the tactile feedback of a real piano and ultimately meeting the needs of professional performance.

[0005] To achieve the above objectives, this utility model provides an electronic keyboard damping mechanism based on magnetorheological materials, comprising keys, pressing blocks, and three liquid reservoirs. A slot is formed in the center of the lower surface of each key. A piston rod is provided inside each of the liquid reservoirs. The upper and lower ends of the outer wall of the piston rod are slidably connected to the liquid reservoir. A connecting block is fixedly connected to the upper end of each piston rod. A first sealing ring is fixedly connected to the center of the top surface inside each liquid reservoir. A second sealing ring is fixedly connected to the center of the bottom surface inside each liquid reservoir. A conductive slider is fixedly connected to the center of the lower surface of each liquid reservoir. Magnetorheological fluid is provided inside each of the liquid reservoirs. An electromagnetic coil is wound around the center of the outer wall of each piston rod. A connecting block is fixedly connected to the outside of each conductive slider. Three connecting holes are formed in the center of the lower surface of each pressing block, and each connecting hole is fixedly connected to a connecting block.

[0006] By using the above technical solution, and by setting piston rods and reservoirs with different damping to replace the conductive rubber of the electric piano, the keyboard can provide users with keys that offer different pressing feedback, thereby improving the tactile experience of the electronic keyboard.

[0007] Furthermore, the piston rod is made of aluminum alloy, and both the first and second sealing rings are made of polytetrafluoroethylene.

[0008] With the above technical solution, the user can press the piano key with their finger, causing the key's groove to contact the movable pin, thereby causing the pressing block to move downwards. This causes the piston rod to move inside the reservoir and squeeze the magnetorheological fluid inside the reservoir.

[0009] Furthermore, a buffer pad is fixedly connected to the middle of the upper surface of the liquid storage cylinder, the buffer pad is in close contact with the piston rod, and the electromagnetic coil is located inside the liquid storage cylinder;

[0010] Through the above technical solution, the impact force of the connecting block at the upper end of the piston rod on the upper end of the liquid storage cylinder can be reduced by setting the buffer pad, thereby preventing the connecting block and the liquid storage cylinder from being damaged due to collision. The electric power is transmitted to the electromagnetic coil through the conductive block by the conductive slider of the external power supply, thereby changing the magnetic field strength of the electromagnetic coil, causing the particles in the magnetorheological fluid to form a chain structure, increasing the resistance of the magnetorheological fluid, thereby increasing the resistance of the piston rod movement and improving the touch feel of the piano keys.

[0011] Furthermore, the first sealing ring is tightly fitted to the piston rod, and the second sealing ring is tightly fitted to the piston rod;

[0012] The above technical solution, through the combined use of sealing ring No. 1 and sealing ring No. 2, prevents the magnetorheological fluid from leaking between the piston rod and the reservoir.

[0013] Furthermore, a movable pin is fixedly connected to the middle of the upper surface of the pressing block, and the movable pin is engaged with the slot.

[0014] The above technical solution, through the combined use of the movable pin and the slot, allows the pressing block to replace the conductive rubber inside the electronic keyboard, thereby improving the response rate of the keys to a certain extent.

[0015] Furthermore, the lower ends of the piston rods each penetrate the liquid storage cylinder and are fixedly connected to two conductive blocks, each of which slides inside the conductive slider.

[0016] The above technical solution improves the stability of power transmission between the conductive block and the electromagnetic coil by using the conductive block and the conductive slider in combination. Furthermore, the value of the current supplied by the conductive slider to the conductive block and the electromagnetic coil can be changed by an external control device, thereby changing the magnetic field strength of the electromagnetic coil and thus changing the resistance of the magnetorheological fluid.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model proposes an electronic keyboard damping keyboard based on magnetorheological materials. It works by using pressing blocks, multiple piston rods equipped with electromagnetic coils, and a reservoir filled with magnetorheological fluid. Users can adjust the values ​​of the electromagnetic coils through an external control device, thereby adjusting the damping of the piston rods moving inside the reservoir. This allows the electronic piano keys to simulate a real piano, providing users with the tactile feel of a real piano and thus meeting the needs of professional performance.

[0019] 2. The present invention proposes an electronic keyboard damping keyboard based on magnetorheological materials. By setting piston rods and liquid reservoirs with different damping, the conductive rubber of the electric piano is replaced, thereby providing the user with keys with different pressing feedback and improving the feel of the electronic keyboard. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of an electronic keyboard damping keyboard based on magnetorheological materials proposed in this utility model from a first-view perspective.

[0021] Figure 2 This is a schematic diagram of the main structure of an electronic keyboard damping keyboard based on magnetorheological materials proposed in this utility model from a second perspective.

[0022] Figure 3 An exploded view of an electronic keyboard damping keyboard based on magnetorheological materials proposed in this utility model;

[0023] Figure 4 This is a partial axial cross-sectional view of the damped electronic keyboard based on magnetorheological materials proposed in this utility model.

[0024] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Piano key; 2. Slot; 3. Piston rod; 4. Connecting block; 5. Pressing block; 6. Connecting hole; 7. Movable pin; 8. Liquid reservoir; 9. Buffer pad; 10. Conductive slider; 11. No. 1 sealing ring; 12. No. 2 sealing ring; 13. Electromagnetic coil; 14. Conductive block; 15. Connecting block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1-4 This utility model provides a specific embodiment: an electronic keyboard damping keyboard based on magnetorheological material, including keys 1, pressing blocks 5, and three liquid storage cylinders 8. A slot 2 is provided in the middle of the lower surface of the keys 1. A piston rod 3 is provided inside each of the liquid storage cylinders 8. The upper and lower ends of the outer wall of the piston rod 3 are slidably connected to the liquid storage cylinder 8. A connecting block 4 is fixedly connected to the upper end of each piston rod 3. A first sealing ring 11 is fixedly connected to the middle of the top surface inside each of the liquid storage cylinders 8. A second sealing ring 12 is fixedly connected to the middle of the bottom surface inside each of the liquid storage cylinders 8. A conductive slider 10 is fixedly connected to the middle of the lower surface of each of the liquid storage cylinders 8. Magnetorheological fluid is provided inside each of the liquid storage cylinders 8. An electromagnetic coil 13 is wound around the middle of the outer wall of each piston rod 3. A connecting block 15 is fixedly connected to the outside of each conductive slider 10. Three connecting holes 6 are provided in the middle of the lower surface of the pressing block 5, and each connecting hole 6 is fixedly connected to a connecting block 4.

[0030] Reference Figure 3-6The piston rod 3 is made of aluminum alloy, and both the first sealing ring 11 and the second sealing ring 12 are made of polytetrafluoroethylene. The user can press the key 1 with their finger, causing the groove 2 on the key 1 to contact the movable pin 7, thereby moving the pressing block 5 downwards. This causes the piston rod 3 to move inside the reservoir 8, squeezing the magnetorheological fluid inside the reservoir 8. A buffer pad 9 is fixedly connected to the middle of the upper surface of the reservoir 8, and the buffer pad 9 fits tightly against the piston rod 3. The electromagnetic coil 13 is located at... Inside the reservoir 8, the buffer pad 9 reduces the impact force of the connecting block 4 on the upper end of the reservoir 8, preventing damage to the connecting block 4 and the reservoir 8 due to collision. The conductive slider 10, connected to an external power source, transmits electricity through the conductive block 14 to the electromagnetic coil 13, thereby altering the magnetic field strength of the electromagnetic coil 13. This causes the particles in the magnetorheological fluid to form a chain-like structure, increasing the resistance of the magnetorheological fluid and thus increasing the resistance to the movement of the piston rod 3, improving the tactile feel of the piano keys 1. The first sealing ring 11 and the second sealing ring 12 are tightly fitted to the piston rod 3. The cooperation of the first sealing ring 11 and the second sealing ring 12 prevents the magnetorheological fluid from leaking between the piston rod 3 and the reservoir 8. A movable pin 7 is fixedly connected to the middle of the upper surface of the pressing block 5. The movable pin 7 is engaged with the slot 2. The cooperation of the movable pin 7 and the slot 2 allows the pressing block 5 to replace the conductive rubber inside the electronic keyboard, which improves the response rate of the key 1 when it is pressed to a certain extent. The lower end of the piston rod 3 passes through the reservoir 8 and is fixedly connected to two conductive blocks 14. The conductive blocks 14 slide inside the conductive slider 10. The cooperation of the conductive blocks 14 and the conductive slider 10 improves the stability of the power transmission between the conductive blocks 14 and the electromagnetic coil 13. The value of the current supplied by the conductive slider 10 to the conductive blocks 14 and the electromagnetic coil 13 can be changed by an external control device, thereby changing the magnetic field strength of the electromagnetic coil 13 and thus changing the resistance of the magnetorheological fluid.

[0031] Working principle: When using this electronic keyboard damped by magnetorheological material, firstly, the user presses the key 1 with their finger, causing the key 1 to contact the movable pin 7 with the pressing block 5. The pressing block 5 drives the piston rod 3, which moves vertically downward, squeezing the magnetorheological fluid inside the reservoir 8. At the same time, the current value of the input conductive slider 10 is adjusted by the external control device, thereby adjusting the current value of the input conductive block 14 and the electromagnetic coil 13, thus adjusting the magnetic field strength of the electromagnetic coil 13. Finally, the particles in the magnetorheological fluid form a chain structure, changing the resistance of the magnetorheological fluid and improving the touch feel of the key 1.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A damped electronic keyboard based on magnetorheological materials, comprising keys (1), pressing blocks (5), and three liquid reservoirs (8), characterized in that: A slot (2) is provided in the middle of the lower surface of the piano key (1). A piston rod (3) is provided inside each of the liquid storage cylinders (8). The upper and lower ends of the outer wall of the piston rod (3) are slidably connected to the liquid storage cylinder (8). A connecting block (4) is fixedly connected to the upper end of each piston rod (3). A first sealing ring (11) is fixedly connected to the middle of the top surface inside the liquid storage cylinder (8). A second sealing ring (11) is fixedly connected to the middle of the bottom surface inside the liquid storage cylinder (8). The sealing ring (12) and the middle part of the lower surface of the liquid storage cylinder (8) are respectively fixedly connected to the conductive slider (10). The inside of the liquid storage cylinder (8) is respectively provided with magnetorheological fluid. The middle part of the outer wall of the piston rod (3) is respectively wound with electromagnetic coil (13). The outside of the conductive slider (10) is fixedly connected to the connecting block (4). The middle part of the lower surface of the pressing block (5) is provided with three connecting holes (6). The connecting holes (6) are respectively fixedly connected to the connecting block (4).

2. The electronic keyboard damping mechanism based on magnetorheological materials according to claim 1, characterized in that: The piston rod (3) is made of aluminum alloy, and the first sealing ring (11) and the second sealing ring (12) are both made of polytetrafluoroethylene.

3. The electronic keyboard damping mechanism based on magnetorheological materials according to claim 1, characterized in that: A buffer pad (9) is fixedly connected to the middle of the upper surface of the liquid storage cylinder (8). The buffer pad (9) is in close contact with the piston rod (3). The electromagnetic coil (13) is located inside the liquid storage cylinder (8).

4. The electronic keyboard damping mechanism based on magnetorheological materials according to claim 1, characterized in that: The first sealing ring (11) is in close contact with the piston rod (3), and the second sealing ring (12) is in close contact with the piston rod (3).

5. The electronic keyboard damping mechanism based on magnetorheological materials according to claim 1, characterized in that: A movable pin (7) is fixedly connected to the middle of the upper surface of the pressing block (5), and the movable pin (7) is engaged with the slot (2).

6. The electronic keyboard damping mechanism based on magnetorheological materials according to claim 1, characterized in that: The lower ends of the piston rods (3) pass through the liquid storage cylinder (8) and are fixedly connected to two conductive blocks (14), which slide inside the conductive sliders (10).

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